Finding the Fourth Proportional to 42,097,434.09, 63,148,414.76 and 13,345,811.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42,097,434.09 : 63,148,414.76 = 13,345,811.69 : x
2. Step 2: Convert to fraction form
   42,097,434.09/63,148,414.76 = 13,345,811.69/x
3. Step 3: Cross multiply
   42,097,434.09x = 63,148,414.76 × 13,345,811.69
4. Step 4: Simplify right side
   42,097,434.09x = 842,766,851,763,312
5. Step 5: Solve for x
   x = 842,766,851,763,312/42,097,434.09
6. Step 6: Final answer
   x = 20,019,435.15